Improvement in seeding-machines



NITED STATES PATENT OFFICE.

IMPROVEMENT IN SEEDlNG-MACHINES.

Specification forming part of Letters Patent No. 191,946, dated June 12,1877 application filed January 13, 1877.

To all whom it may concern Be it known that I, STEPHEN DIxsoN, ofRoseville, in the county of Warren and State of Illinois, have inventedcertain new and useful Improvements in Seeding-Machines; and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, which will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawin gs, and to letters of reference marked thereon,which form a part of this specification.

My invention relates to seeding devices for corn-planters; and theinvention consists in certain new and improved devices, and combinationsof devices, whereby the seed is forced through the openings in theseed-cup plate, thereby preventing the passages from becoming clogged bylarge grains, or from the grains getting wedged together, all ashereinafter more fully described.

'In the accompanying drawings, Figure l is an enlarged top view of thebottom of the seed box, partly in section, to show the operating parts.Fig. 2 is a side elevation of the seeding devices and roller, partly insection, to

' show the gearing. Fig. 3 is a top view of the seed-box,covering-roller, and adjacent parts. Fig. 4 is a top or plan view of oneof the seedcup plates, showing details of construction. Fig. 5 is asectional view of one of the seedcup plates, and elevation of feed-disk.Fig. 6 is a perspective view of one of the forcefeeding devices.

Referring to the parts by letters. H- represents the seed-hopper; h, theseed-tube; h, the roller; h, a frame connecting the roller with theseeding devices and supporting the latter. h is an ordinaryfurrow-opener which operates in advance of the seed-tube h, to insure anopen furrow therefor. V

K represents spurwheels, one on each end of the shaft of the roller h,and which gear with pinions K, which are journaled in housings L, whichcovers both gears K and K.

k k are cranks on the projecting ends of the shafts of pinions K, andare connected by rods k with the outer ends of the seed-cup plates M, soas to give them an oscillating motion in the obvious manner.

The seed-cup plates M are constructed and seated in the bottom of thehopper H, as shown and described in my patent No. 158,407, of January5,1875, and have seedpassages m m, discharging the seed in the samemanner as therein described-the one discharging when the plateoscillates forward on the pivot m, and the others when it oscillatesback again.

Immediately over where each seed-cup discharges is seated a rock-shaft,N, covered by a housing, P. On one end of the rock-shaft N is a disk n,having a groove cut therefrom, so as to form a projection, n, and on theother end of the shaft N is a disk, at, with a groove cut therein whichleaves sides 12'.

The shafts N are journaled and seated, so that the disk n projectsdownward beyond the periphery of the plate M in such manner that as theplate M oscillates in one direction one of the pins m, which projectsfrom its edge, will strike a shoulder, n, and rock the shaft N in onedirection, and a return movement of the plate M will cause the other pinm' to strike the other shoulder 'n, and rock the shaft N in the otherdirection.

Rocking the shaft N in one direction thrusts a projection, n, of thedisk a through a seed-cup, m, at the moment it is over itsdischarge-opening, and thereby prevents the grains becoming wedgedtogether, or any large grains clogging the passages; and the shaft N isrocked in the opposite direction at the necessary moment to raise theprojection a from the seed-cup and allow the seedcup plate M to beagainoscillated.

Having thus described my invention, what I claim as new, and desire tosecure'by Letters Patent, is-

l. The rock-shaft N, having disks n and n operating in combination withseed-cup plate M, having passages m and projecting pins m, substantiallyas and for the purpose specified.

2. The combination of seed-hopper H and oscillating seed cup plates M,having the passages m and pins m, with the rock-shafts N having disks nand n, and with the housings P, substantially as and for the purposespecified. g

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

STEPHEN DIXSON.

Witnesses:

THOS. McKEE, M. H. BAREINGEB.

